.d1{
    width: 100%;
    height: 100%;
    /*background-image: url(../images/image3.jpg);*/
    background-repeat: no-repeat;
    display: block;
    box-sizing: border-box;
    overflow-x: hidden;
    z-index: 2;
    margin: 0;
    position: absolute;
    -moz-background-size:100% 100%;
    background-size:100% 100%
}
.d2{
    position:absolute;
    z-index:2;
    /*left:calc(50% - 240px);*/
    /*top:calc(50% - 200px);*/
    /*height: 400px;*/
    /*width: 480px;*/
    border: 1px solid #17191869;
    /*background-color:#30a59129;*/
}
.d3{
    height: 30px;
    /*width: 220px;*/
    background-color:transparent;
    border:1px solid #103746;
    color: #02e1f4b8;
    z-index: 2;
}
.d4{
    height: 40px;
    /*width: 280px;*/
    /*background-color:#081e2f;*/
    border:1px solid #0f34428f;
    color: #02e1f4;
    /*font-size: 16px;*/
    z-index: 2;
}
.a1{
    position:absolute;
    z-index:2;
    /*left:20%;*/
    border:1px solid #103746;
    height: 32px;
    width: 38px;
    text-align: center;
    line-height: 30px;
}
.a2{
    /*top:20%;*/
    /*position: relative;*/
}
.a3{
    /*top:40%;*/
}

.a4{
    /*color: #02e1f4;*/
}